EP 2942963 A1 20151111 - SCALABLE VIDEO ENCODING METHOD AND APPARATUS USING IMAGE UP-SAMPLING IN CONSIDERATION OF PHASE-SHIFT AND SCALABLE VIDEO DECODING METHOD AND APPARATUS
Title (en)
SCALABLE VIDEO ENCODING METHOD AND APPARATUS USING IMAGE UP-SAMPLING IN CONSIDERATION OF PHASE-SHIFT AND SCALABLE VIDEO DECODING METHOD AND APPARATUS
Title (de)
VIDEOCODIERUNG MIT SKALIERBARER VORRICHTUNG MITTELS BILD-UPSAMPLING UNTER BERÜCKSICHTIGUNG DER PHASENVERSCHIEBUNG UND SKALIERBARES VIDEODECODIERUNGSVERFAHREN SOWIE VORRICHTUNG
Title (fr)
PROCÉDÉ D'ENCODAGE DE VIDÉO POUVANT ÊTRE MISE À L'ÉCHELLE ET APPAREIL UTILISANT UN SURÉCHANTILLONNAGE D'IMAGE EN CONSIDÉRATION D'UN DÉPHASAGE ET PROCÉDÉ ET APPAREIL DE DÉCODAGE DE VIDÉO POUVANT ÊTRE MISE À L'ÉCHELLE
Publication
Application
Priority
- US 201361748919 P 20130104
- KR 2014000094 W 20140106
Abstract (en)
Provided is a method of determining an up-sampling filter to accurately interpolate a sample value for each sampling position according to an up-sampling ratio for scalable video encoding and decoding. An up-sampling method for scalable video encoding includes determining a phase shift between a pixel of a low resolution image and a pixel of a high resolution image based on a scaling factor between the high resolution image and the low resolution image; selecting at least one filter coefficient set corresponding to the determined phase shift from filter coefficient data comprising filter coefficient sets corresponding to phase shifts; generating the high resolution image by performing filtering on the low resolution image by using the selected at least one filter coefficient set; and generating an improvement layer bitstream comprising high resolution encoding information generated by performing encoding on the high resolution image and up-sampling filter information indicating the determined phase shift.
IPC 8 full level
H04N 19/187 (2014.01); H04N 19/117 (2014.01); H04N 19/182 (2014.01); H04N 19/186 (2014.01); H04N 19/30 (2014.01); H04N 19/59 (2014.01); H04N 19/82 (2014.01)
CPC (source: EP US)
H04N 19/117 (2014.11 - US); H04N 19/182 (2014.11 - US); H04N 19/186 (2014.11 - US); H04N 19/187 (2014.11 - EP US); H04N 19/30 (2014.11 - EP US); H04N 19/59 (2014.11 - EP US); H04N 19/82 (2014.11 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2942963 A1 20151111; EP 2942963 A4 20160817; CN 105191313 A 20151223; JP 2016502379 A 20160121; KR 20140089487 A 20140715; US 2015341661 A1 20151126; US 9961365 B2 20180501; WO 2014107066 A1 20140710
DOCDB simple family (application)
EP 14735149 A 20140106; CN 201480012095 A 20140106; JP 2015551609 A 20140106; KR 2014000094 W 20140106; KR 20140001508 A 20140106; US 201414759319 A 20140106